Spirit Air to charge up to $100 for carry-on bags

Spirit Airlines will raise its fee for carry-on bags to up to $100, becoming the first U.S. airline to charge so much for a service that most other airlines offer for free.

Spirit said on its website that the new fees apply to carry-on bags registered at the gate and will become effective Nov. 6. Until that time, Spirit will continue to charge $45.

"We don't want any of our customers to wait until they get to the boarding gate to pay for their carry-on bags as this delays the boarding process for everyone," said Misty Pinson, a Spirit Air spokesperson.